Rauchvirus

Rauchvirus is a genus of viruses in the order Caudovirales, in the family Podoviridae. Bacteria serve as natural hosts. The genus contains only one species: Bordetella virus BPP1.[1][2]

Rauchvirus
Virus classification
(unranked): Virus
Realm: Duplodnaviria
Kingdom: Heunggongvirae
Phylum: Uroviricota
Class: Caudoviricetes
Order: Caudovirales
Family: Podoviridae
Genus: Rauchvirus
Synonyms
  • BPP-1-like viruses
  • Bppunalikevirus

Structure

Viruses in Rauchvirus are non-enveloped, with icosahedral and head-tail geometries, and T=7 symmetry. The diameter is around 67 nm. Genomes are linear, around 42kb in length, and usually encodes about 50 proteins. The Bordetella phages of this genus contains an RNA-directed DNA polymerase which plays a role in tropism.[1][3] [4]

The genomes are linear, terminally redundant, and circularly with approximately 40.[5] There are 53 proteins, and genes are arrayed in two transcriptional units, one on the negative strand, which is involved in regulation and recombination; the other is located on the positive strand which is involved in packaging, morphogenesis, lysis and integration.[3]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
RauchvirusHead-TailT=7Non-envelopedLinearMonopartite

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by adsorption into the host cell. DNA-templated transcription is the method of transcription. Bacteria serve as the natural host. Transmission routes are passive diffusion.[1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
RauchvirusBacteriaNoneInjectionLysisCytoplasmCytoplasmPassive diffusion

References
  1. "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 12 May 2021.
  3. Dai, W.; Hodes, A.; Hui, W. H.; Gingery, M.; Miller, J. F.; Zhou, Z. H. (2010). "Three-dimensional structure of tropism-switching Bordetella bacteriophage". Proceedings of the National Academy of Sciences. 107 (9): 4347–52. Bibcode:2010PNAS..107.4347D. doi:10.1073/pnas.0915008107. PMC 2840154. PMID 20160083.
  4. Liu, M.; Gingery, M.; Doulatov, S. R.; Liu, Y.; Hodes, A.; Baker, S.; Davis, P.; Simmonds, M.; Churcher, C.; Mungall, K.; Quail, M. A.; Preston, A.; Harvill, E. T.; Maskell, D. J.; Eiserling, F. A.; Parkhill, J.; Miller, J. F. (2004). "Genomic and genetic analysis of Bordetella bacteriophages encoding reverse transcriptase-mediated tropism-switching cassettes". Journal of Bacteriology. 186 (5): 1503–1517. doi:10.1128/JB.186.5.1503-1517.2004. PMC 344406. PMID 14973019.
  5. Johnson, Matthew C; Tatum, Kelsey B; Lynn, Jason S; Brewer, Tess E; Lu, Stephen; Washburn, Brian K; Stroupe, M Elizabeth; Jones, Kathryn M (1 November 2015). "Sinorhizobium meliloti Phage ΦM9 Defines a New Group of T4 Superfamily Phages with Unusual Genomic Features but a Common T=16 Capsid". Journal of Virology. 89 (21): 10945–10958. doi:10.1128/jvi.01353-15. ISSN 1098-5514. PMC 4621102. PMID 26311868.

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